https://git.reactos.org/?p=reactos.git;a=commitdiff;h=5c9fdcb1de7faa49c2af341631217baa7b9fe552
commit 5c9fdcb1de7faa49c2af341631217baa7b9fe552 Author: Doug Lyons <[email protected]> AuthorDate: Thu Dec 2 12:55:39 2021 -0600 Commit: GitHub <[email protected]> CommitDate: Thu Dec 2 19:55:39 2021 +0100 [3DTEXT] Fix 3dtext.scr using near 100% CPU (#4125) CORE-17866, CORE-8217 --- base/applications/screensavers/3dtext/3dtext.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/base/applications/screensavers/3dtext/3dtext.c b/base/applications/screensavers/3dtext/3dtext.c index c1f908ca37a..b46fcce6905 100644 --- a/base/applications/screensavers/3dtext/3dtext.c +++ b/base/applications/screensavers/3dtext/3dtext.c @@ -41,6 +41,9 @@ GLfloat extentY = 0.0f; HINSTANCE hInstance; BOOL fullscreen = FALSE; +UINT uTimerID; // SetTimer Actual ID +#define APP_TIMER 1 // Graphics Update Timer ID +#define APP_TIMER_INTERVAL (USER_TIMER_MINIMUM * 5) // Graphics Update Interval // Build Our Bitmap Font GLvoid BuildFont(GLvoid) @@ -338,12 +341,18 @@ ScreenSaverProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) // Initialize The GL Screen Using Screen Info InitGL(Screen.right, Screen.bottom); + + // Create Graphics update timer + uTimerID = SetTimer(hWnd, APP_TIMER, APP_TIMER_INTERVAL, NULL); break; case WM_DESTROY: // Disable Fullscreen Mode ChangeDisplaySettings(NULL, 0); + // Delete the Update Timer + KillTimer(hWnd, uTimerID); + // Deletes The Font Display List KillFont(); @@ -360,6 +369,8 @@ ScreenSaverProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) case WM_PAINT: DrawGLScene(); SwapBuffers(hDC); + // Mark this window as updated, so the OS won't ask us to update it again. + ValidateRect(hWnd, NULL); break; case WM_SIZE: // Resizing The Screen @@ -367,6 +378,11 @@ ScreenSaverProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) ReSizeGLScene(LOWORD(lParam), HIWORD(lParam)); break; + case WM_TIMER: + // Used to update graphic based on timer udpate interval + InvalidateRect(hWnd, NULL, TRUE); + break; + default: // Pass Windows Messages to the default screensaver window procedure return DefScreenSaverProc(hWnd, message, wParam, lParam);
